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TROUBLESHOOTING
Troubleshooting Guide
Symptom
Possible Cause
Remedy
1. The unit does not
operate.
2. Water is not heated
as desired.
3. The water
temperature
remain unstable.
4. The water does
not flow well while
the water from
the other taps
is strong.
5. Shower cycles
from hot to cold.
A. No electric current flow
through the unit.
B. The circuit breaker or
fuses are cut off.
C. There is not sufficient
water pressure.
A. Check the connection
of the wire if it’s fitted to
the correct terminals.
B. The circuit breaker has
drop down to “OFF” position.
Push it to “ON” position.
C. Improve water pressure.
Water pressure/ flow
rate into the unit is too
high.
Decrease the water supply
by adjusting the inlet water
valve and 3 in 1 stop valve.
The water pressure
remain unstable.
Adjust the water pressure.
A. The filter is obstructed
by sediments.
A. Clean the filter.
B. The shower head is
clogged.
A. Clean the shower head.
A. Shower head is blocked.
A. Remove and clean.
B. Water pressure is below
the minimum pressure
required for the unit
operation.
B. Make sure that the main
supply and/or the 3 in 1
stop valve is fully opened.
C. Temperature is set
too high.
C. Turn the temperature
control knob counter
clockwise until a cooler
temperature is achieved.
D. The thermostat is faulty
or damaged.
D. Contact customer service.
WIRING DIAGRAM - WITH DOUBLE POLE ELCB, DOUBLE ACTION THERMOSTAT
NO PUMP MODEL
WIRING DIAGRAM - WITH DOUBLE POLE ELCB, DOUBLE ACTION THERMOSTAT
DC PUMP MODEL
WIRING DIAGRAM
Flow switch
Power On/Off
Temperature Control
Electronic
ELCB,15mA
Sensitivity
Reset
Test
Power On/Off
Temperature Control
Electronic
ELCB,15mA
Sensitivity
Reset
Test
Flow switch
